INDEX 



399 



Russian Thistle, 359. 

 Rust, 367 ; of Wheat, 90. 



Saccharose, 100. 



Sachs, Lectures, 36. 



Sand-box, 36.5. 



Sap, rise in trees, 147 ; theory of 

 ascent, 149 ; wood, 124, 145. 



Sapling, 387. 



Saprophyte, 11, S3. 



Sargent, Plants, 117. 



Sarra<:erna, 75, 76, 246. 



Scabs, 367. 



Scape, 193. 



Science, aim, 12 ; applications, 5. 



Scion, 20S. 



Sclereids, 265. 



Sclerenchyma, 130, 265. 



Scott, Botany, 116. 



Seasonal cycle, 388. 



Seaweeds, 12. 



Secretion, 266. 



Secretions, 107. 



Seed, 390; albuminous, 374, 375; 

 characteristics, 372; coat, 351, 

 375 ; condition of life, 378 ; du- 

 ration of life, 377, 380 ; economics, 

 385 ; ex-albuminous, 374, 376 ; 

 function, 8 ; plants, 10 ; pro- 

 jection, 364 ; structure, 373. 



Seedhng, 9, 387 ; of Radish, 218. 



Selection of yariations, 318. 



Self-adjustments, 55, 266. 



Semi-permeable membrane, 228, 235. 



Sempcrvivum, 188. 



Sepals, 269. 



Sex, cells, fu.sion, 278, 279 ; estab- 

 lished, 304 ; origin, 302 ; origin, 

 summary, 308 ; in plants, 307 ; 

 stages in development, 303. 



Sexual organs, 307. 



Shade, growth under, 95. 



Shoot, 190. 



Shrubs, 9. 



Side roots, origin, 223. 



Sieve, plate, 152; tube, 31, 131, 152, 

 262. 



Silicles, 348. 



Skeleton of plants, 98. 



Skunk Cabbage, 268. 



Sleep n;iovenients, 57, 61. 



Slime-mold, 39, 357. 



Slips, 259. 



Smuts, 367. 



Snapdragon, 274. 



Soil, composition, 237 ; cultivation, 

 260 ; solution, 241 ; structure, 

 238, 239. 



.Solomon's .Seal, 191. 



Sorus, 326. 



Spadix, 338. 



Spathe, 338. 



iSpecial creation, 315. 



Species, 7. 



Spectroscope, 53. 



Sperm, 277 ; cell, 9. 



Spermatophytes, 10. 



Spermatozoid, 280, 304. 



Sphagnum, 115. 



Spike, 335, 337. 



Spines, 192, 193, 256; Barberr>-, 81; 

 Echinocactus, 80 ; morphology, 

 79 ; significance, 79. 



Spongy tissue, 30. 



Spontaneous generation, 39, 40. 



Sporangium, 324, 325. 



Spore, 324, 373 ; asexual, 301 ; cases 

 of Mold, 302 ; dissemination, 360. 



Sporophore, 84. 



.Sporophyll, 325. 



Sports, 205, 319; preservation, 318, 

 319; seed, 319. 



Spot diseases, 367. 



Spraj'ing, 371. 



Squirting Cucumber, 365. 



Stamen, 272 ; irritable, 297. 



Staminate flowers, 276, 285. 



Starch, as food for man, 103 ; for- 

 mation under light screen, 21 ; 

 formation r.5. osmosis, 234 ; for- 

 mation in pre.sence of CO2, 22 ; 

 grains, 101 ; grains, typical forms, 

 102 ; kinds, 101 ; sheath, 130. 



Stele, 264. 



Stem, anatomy, 128, 129, 131 ; 

 characteristics, 113; columnar, 

 179 ; as conducting mechanism, 

 150; creeping, 187; deliquescent, 

 181 ; economics, 205 ; endogenous, 

 127 ; excurrent, 179, 180 ; exog- 

 enous, 127 ; function, 7, 53 ; general- 

 ized diagram, 125 ; herbaceous, 

 115 ; special function, 191 ; stor- 

 age, 191 ; structure, 115 ; sym- 

 metry, 181, 182; tissues, 116; 

 tissues, generalized, 117 ; tissues. 



